The moon spent a few million years as a volcanic wasteland, covered with ongoing eruptions that spewed from mountains and even from the ground itself. New research suggests that the moon's orbit could ...

While the moon once had a weak magnetic field generated by a small molten core, the team's research suggests it likely wouldn ...

The result may have been comparable to Jupiter's moon Io, the most volcanic body in the solar system. Early in the history of the solar system, a massive protoplanet plowed into a young Earth.

Something incredible just happened in our own cosmic backyard. For the first time from Earth, scientists have watched as a ...

The curious minds at What If reveal what could happen to your body after spending just 5 seconds on Jupiter's moon, Io.

Jupiter’s rule of the evening sky is coming to a close. Catch some action there while you can, shortly after sunset this ...

Stunning new Jupiter photos from NASA’s Juno spacecraft reveal storms, cloud bands, and its volcanic moon Io as the mission ...

If the President follows through on his threats, the price tag could be enormous. Yet financial loss is far from the worst damage that Trump can cause his erstwhile ‘first buddy’, Io Dodds writes.

Just a few months ago, observations from Juno revealed that the volcanic moon Io might be more solid than thought. “By measuring how a planet’s gravity field changes as a spacecraft orbits ...

Jupiter, roughly 562 million miles from Earth today, has nearly 100 moons. But Batygin and his collaborator Fred Adams' ...

For example, Pappalardo said, Europa is gravitationally locked with its neighboring moon Io, which has an eccentric orbit around Jupiter. This means Io may be pushing and pulling on Europa in ...